@Sonaldo Okay, it looks like you don't know certain things about transgender people, so I can see where you think your argument is reasonable. And, it really is reasonable based on the premises you're going off. It's just that those premises happen to be incorrect because you don't know some things about us.
Okay, so gender dysphoria. The standard treatment in places I'd consider to have a better take on transgender issues is to do whatever is needed to alleviate that. The thing is, for transgender people that varies. For example, our manga author here needed the surgery in addition to HRT and changing her documentation and everything else to feel more fully herself. I have a friend for who even that wasn't completely enough, even if it did help--she basically feels bad about her body not being small and cute, things like that. But the medical technology to fix that doesn't exist yet and this feeling is something she can live with, which wouldn't have been the case with not having done all she did to change her body and herself.
And there're some for which it takes fewer steps to reach a point where they are no longer suffering from gender-related depression and other issues. For, example me. What it took was getting HRT to change my body to look more feminine and then changing all my documentation, including ID, to reflect my true identity. Once I did all that, I felt pretty much fine about myself. Just being able to live as a woman was enough. For me the surgery is unnecessary to alleviate my gender dysphoria. And reasonable doctors pretty much agree you don't do unnecessary surgery, particularly a major operation like replacing your genitals. After all, every surgery comes with its share of health risks and other possible consequences, including death if things go really, really wrong.
Haven't you heard the phrase used in the medical field, "First do no harm?" It essentially refers to the fact that medical interventions come with their own risks and it's better to do nothing if the risks are worse than the benefits. For me that definitely applies when it comes to the surgery. For people who need the surgery, it can be a literal life changer and worth doing. For me, it's not that.
So why do I change my ID and other documentation? Because not doing so causes me dysphoria. It's that simple. Having an ID that reflects my old name and an incorrect gender, that's a sore reminder of my old self who was stuck living a life she didn't want to lead.
Furthermore, transgender people are more varied and weird than you think. Those stories about SRS don't always fully reflect that--they're about people who get SRS, which isn't every trans person. Some trans people fall into no neat gender category (the nonbinary folks). Some have their feelings of gender change frequently. And so on. In short, human psychology is complicated.
So, yes, I don't think IDs should reflect the physical reality. Because that doesn't always reflect what's going on in the head. And I feel what's going on the head is more important than what's going on between the legs. Genitals have sensations, but they don't have emotions themselves. They don't experience suffering, only the physical sensation of pain. Human brains are what feel suffering, and forcing IDs to reflect what's between people's legs rather than what's in their brains can cause that suffering, whether it is from dysphoria or from being fired for ones gender, or beat up, all of which are real things that happen to transgender people in many places. Some even get murdered.
Finally, gender identity? It isn't something decided trivially, you know. Many people would not want to even pretend to be a gender they aren't. And if someone did pretend for the sake of performing a crime (a rather rare thing to happen), they can just be tried for that crime. We have identity fraud as a crime already, you know. In short, people can (hypothetically) use gender for evil, yes, but they already use many other things for evil. Like, just because someone can pick up a thing and carry it out of the store without paying for it, is it reasonable to outright forbid picking up things? Plus criminals break the law, you know. That's a thing they'll do. Some of them have fake IDs, even, so forcing IDs to match what's between your legs doesn't even really do anything but make it harder for non-criminal transgender people who are just trying to live as themselves. It's like DRM that makes life harder for legitimate customers while not stopping pirates who just download hacked versions of that software with the DRM removed.
Also, your concern over ridiculing trans people is understandable but misplaced. The thing is, us transgender people have a term for narrow, rigid definitions of who is a legitimate transgender person: gatekeeping. Medical gatekeeping can keep legitimately trans people from receiving what is in many cases literally life-saving mental health care and other medical procedures as necessary. There've been cases where trans people struggled to get medical care they needed because they didn't meet certain stereotypes of being transgender, or certain stereotypes of femininity or masculinity. And denial of that medical care can indirectly kill via despair. In short, overly limiting definitions of transgender people kills far more of them than more loose definitions. And I'm far more concerned with the lives of trans people, including my friends, than some vague notion of being 'ridiculed'.
I've only been making an effort to type all of this because I think you mean well and are trying to do the right thing. I think you can be reached.
@zips here has been taking an understandably more angry approach because, honestly, transgender people already receive a lot of bullshit and the approach you are taking just leads to more of that bullshit to us, however well-intended it is. In short, I'm asking you to please listen to us actual trans people.